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Samson Dynasorb II Rigging Line 9/16
Samson Dynasorb II Rigging Line 9/16
Samson Dynasorb II Rigging Line 9/16
Samson Dynasorb II Rigging Line 9/16
Samson

Samson Dynasorb II Rigging Line 9/16" x 150' Red

★★★★★4.3 (4 reviews)
200 lbs

A 13,200 lb tensile-rated double braid rigging line engineered to absorb shock and resist abrasion where failure isn't an option.

$210.99*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Samson Dynasorb II is a 9/16" double braid rigging line built around a specific material pairing: a nylon core inside a polyester cover. That combination isn't arbitrary. Nylon is an elastic fiber — it stretches under load and recovers, dissipating shock energy rather than passing it directly through to anchor points and hardware. The polyester cover handles what nylon is less suited for: surface abrasion and moisture environments. Together, the construction hits a 13,200 lb (58.7 kN) tensile strength figure while maintaining the dynamic load characteristics that make it appropriate for applications where sudden shock loading is a realistic scenario, not an edge case.

At 150 feet and 9/16" diameter, this line is sized for serious rigging work — stage rigging, industrial lifting assist, and marine applications where you need both length and a manageable hand-grip diameter. The double braid construction means the line maintains a consistent round profile under load, which feeds smoothly through compatible blocks and over cleats without the flat-spotting or ovalization that can plague three-strand lines. The red colorway aids fast visual identification in complex multi-line setups. This is not a general-purpose utility rope — it's a rigging-specific line for users who understand working load calculations and need shock mitigation built into the rope itself rather than managed entirely by external hardware.

Key Features

Abrasion resistant, especially in wet environments

Excellent shock mitigation

High strength retention: Tensile Strength = 13,200 lbs (58.7 kN)

Fiber (Core/Cover) Nylon/Polyester (stronger than an all-polyester rope)

Construction - Double Braid

Specifications

Diameter
9/16"
Length
150 feet
Construction
Double Braid
Core Material
Nylon
Cover Material
Polyester
Tensile Strength
13,200 lbs (58.7 kN)
Color
Red

Pros & Cons

👍 Pros

  • The 13,200-lb (58.7 kN) tensile strength in a 9/16" diameter provides a high strength-to-diameter ratio, reducing bulk and weight in the rigging system while maintaining substantial load capacity.
  • The nylon/polyester double braid construction absorbs dynamic shock loads, protecting both the attachment points and the rope itself during sudden load events.
  • 13,200 lb tensile strength gives this line substantial reserve capacity for demanding overhead and haul rigging scenarios.
  • The nylon/polyester hybrid construction provides measurably better energy absorption under shock loads than an all-polyester rope — a documented engineering advantage for dynamic rigging scenarios.
  • Double braid construction distributes load across both core and cover simultaneously, providing redundancy that single-braid constructions cannot match under multi-directional stress.
  • Polyester outer cover provides reliable abrasion resistance specifically in wet environments where unprotected nylon would degrade faster.
  • The 150-foot length covers a wide range of rigging distances without needing to splice multiple shorter lines together.
  • Polyester cover construction specifically improves abrasion resistance in wet environments — a characteristic important for marine, waterfront, or weather-exposed rigging deployments.
  • The 150-foot length provides sufficient run for most tower, tree, or structural rigging applications without requiring line-to-line connections that introduce potential failure points.
  • Double braid construction resists kinking and maintains a round, workable cross-section even after repeated loading cycles.

👎 Cons

  • The nylon core absorbs a small amount of moisture, which can modestly reduce wet breaking strength compared to all-polyester alternatives — a measurable trade-off in consistently submerged applications.
  • At 9/16" diameter, this line requires hardware — cleats, blocks, pulleys — rated for that specific size, which limits drop-in compatibility with smaller-diameter rigging hardware.
  • The nylon core, while excellent for shock absorption, will absorb some water over time in prolonged submersion, marginally increasing weight and requiring thorough drying to prevent long-term fiber degradation.
  • At 9/16" diameter, this rope requires fittings, blocks, and cleats rated for its specific diameter — it is not compatible with hardware sized for smaller-diameter lines without substitution.
  • The high tensile strength rating requires appropriate safety factor discipline to apply correctly — the 13,200-lb figure is breaking strength, not working load, and misapplication represents a genuine safety risk.
  • 150-foot coils require proper flaking or coiling discipline to prevent hockles; improper storage of double braid line can introduce twists that weaken the structure over time.
  • The red colorway, while useful for identification, may not align with color-coding conventions already in use on a given worksite.
  • Double braid construction is more difficult to field-splice than single-braid designs without dedicated splicing tools and splice training — improper splices will dramatically underperform the rope's rated strength.
  • At 150 feet, cutting to a shorter working length requires proper whipping or heat-fusing the cut ends to prevent cover-to-core separation — an additional step compared to lower-construction ropes.
  • No published working load limit is included in the product listing — users must calculate safe working loads from tensile strength based on applicable rigging standards and their specific application's safety factors.

Frequently Asked Questions

The nylon core is the key. Nylon has a higher elongation-at-break than polyester and absorbs energy during dynamic loading events — falls, sudden load shifts, and surge loads. The polyester cover provides abrasion resistance and UV stability that nylon alone lacks. Together, the hybrid construction achieves both the shock absorption of nylon and the surface durability of polyester — a combination an all-polyester rope cannot match.
The Dynasorb II uses a nylon core inside a polyester cover — nylon's natural elasticity is what provides the energy absorption the name references. An all-polyester rope is stiffer and transmits shock loads more directly; the nylon core in this double braid construction dampens those peaks, which is critical in dynamic rigging applications.
Tensile strength is rated at 13,200 lbs (58.7 kN). This is the break strength — working load limits in professional rigging applications are typically calculated at a fraction of break strength, often 5:1 or 10:1 depending on application and governing standards. Verify working load requirements against your specific rigging scenario.
The 13,200 lbs (58.7 kN) figure is the tensile (breaking) strength — the load at which the rope is expected to fail under controlled test conditions. Working load limit (WLL) in rigging applications is a fraction of breaking strength, typically calculated using a safety factor of 5:1 to 10:1 depending on application. At a 5:1 safety factor, the operational WLL would be approximately 2,640 lbs. Always apply the appropriate safety factor for your specific rigging application.
Double braid construction is well-suited to eye splices, which are the recommended termination method for high-load rigging applications — spliced connections typically retain 90–95% of the rope's rated breaking strength. Knots are generally not recommended for high-load rigging as they can reduce effective breaking strength by 40–60% depending on knot type. For maximum strength retention, use properly completed splices or certified connectors.
The polyester outer cover is specifically highlighted for abrasion resistance in wet environments. Polyester retains strength when wet better than nylon alone would, so the double braid construction gives you the energy absorption of nylon with the wet-environment durability of polyester on the working surface.
This variant is 9/16" diameter and 150 feet in length. The 9/16" diameter provides a workable hand grip for manual hauling and is compatible with appropriately sized hardware, blocks, and cleats rated for that diameter.
Polyester is inherently resistant to moisture absorption and maintains its properties when wet, while nylon does absorb some moisture — which can modestly reduce dry strength. However, polyester's abrasion resistance improves in wet conditions relative to other fiber types, and the double braid construction prevents sand and grit from working into the core as readily as with braided-over-twisted constructions. The rope is specifically rated as abrasion resistant in wet environments.
Coil loosely in figure-eight or butterfly coils rather than tight circular coils to prevent hockles and reduce long-term memory twist. Store away from UV exposure, heat sources, and chemical contact. Inspect for core damage, gloss loss, or stiff spots before each use — the polyester cover can mask core degradation that isn't visible externally.
Color-coding in rigging lines serves a functional purpose — it allows crews to quickly identify line type, size, or designation in multi-line setups. The red colorway on this Dynasorb II makes it visually distinct from natural or white lines on a worksite, reducing the chance of misidentification under time pressure.

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